Get on
this guy's list for his HPFP fixes (he's very backordered). While his fixes should improve reliability of the high-pressure fuel pump, the more important thing is that the pump fails, you only need to replace the pump (and filters), not the entire fuel system (fuel rail, injectors, etc.).
quote:
Been helping a lot at buddy's shop where he's been getting sh/t ton of TDIs to work on. Other than the "pump deuce", not a single fuel issue. And we're talking 150k+ on most of these. The pump deuce needs at least one injector ($800). I changed out the rail, the pump and a bunch of other crap already. Still has a bad miss on one injector.
There is no fuel rail on the PD engine except the one built-in to the cylinder head. The unit injectors are driven off the camshaft, which may be your problem here -- PD cams aren't always the greatest, especially if you haven't always used the proper 5w40 oil (yes, the dealer Castrol 5w30 oil technically meets 505.01 spec... but people don't like it as much). PD Injectors should also cost half that price, although labor is a bit involved and requires some special tools.